what is phylum porifera in animal kingdom
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The approximately 5,000 living sponge species are classified in the phylum Porifera, which is composed of three distinct groups, the Hexactinellida (glass sponges), the Demospongia, and the Calcarea (calcareous sponges). Sponges are characterized by the possession of a feeding system unique among animals.
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________
-:Phylum Porifera:-
●The Porifera are apparently lifeless and plant like creatures commonly called the Sponges. They posses following characters-
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• The body form varies considerably. Some Sponges are vase like or cylinderical.
• They have radial symmetry.
• THEY have two germ layers. Hence they arr Diploblastic animals.
• The locomotory appendages are missing in Sponges
•Respiration occurs by diffusion of gases through body surface.
________
-:Phylum Porifera:-
●The Porifera are apparently lifeless and plant like creatures commonly called the Sponges. They posses following characters-
________
• The body form varies considerably. Some Sponges are vase like or cylinderical.
• They have radial symmetry.
• THEY have two germ layers. Hence they arr Diploblastic animals.
• The locomotory appendages are missing in Sponges
•Respiration occurs by diffusion of gases through body surface.
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